Finally got over a hurdle that's been plaguing me for almost 4 months yesterday, the 200# mark. I hit 91kg (201) and then 93 (205). I'm posting both b/c I think the 201 is a better lift, something about the 3 bumper plates had me a little scared on the second lift so the catch was shakier.

Despite my best efforts it still looks like I might not be extending my hips enough before going under. Also I look like I'm moving in slow motion under the bar so that's something I'll have to continually work on.

You open up a little better on the first one but keep in mind, when your attempting PRs the technique is most likely not going to be perfect. The speed under the bar is fine. Just remember to actively pull yourself under and maintain tension on the bar.
You're a bit shaky in the bottom position but again, things like that are expected when you're attempting PRs.

Thanks! Yeah I don't think I fully expected to catch that 93 so I was definitely a little wobbly. After watching these over and over in slow motion I noticed that the bar is really far from my chest on the pull under. I think I'm still kind of swinging myself under the bar. What drills would help with this? Snatches from the hip?

Yes, dip snatches and tall snatches. Also block snatches from high blocks. You can also do a combo like snatch high-pull + snatch/hang snatch and really work on bringing those elbows straight up and not back.